CN104724955A - Method for preparing high-activity composite phosphorus slag powder - Google Patents
Method for preparing high-activity composite phosphorus slag powder Download PDFInfo
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- CN104724955A CN104724955A CN201510108287.4A CN201510108287A CN104724955A CN 104724955 A CN104724955 A CN 104724955A CN 201510108287 A CN201510108287 A CN 201510108287A CN 104724955 A CN104724955 A CN 104724955A
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- phosphorus slag
- slag powder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The invention discloses a method for preparing high-activity composite phosphorus slag powder. The method comprises the following steps: (1) carrying out lime neutralizing pretreatment: weighing 80-99 parts by weight of granulated phosphorus slag, 1-20 parts by weight of calcium oxide and 30-60 parts by weight of water, firstly, enabling the granulated phosphorus slag to be subjected to mixed reaction with 20-40% of calcium oxide and 10-30% of water, then, putting the raw material after reacting in a mill completely, carrying out rough milling, then, enabling the rest calcium oxide and the rest water to be subjected to mixed reaction with the rough-milled raw material together so as to obtain a mixed reacting material, and baking the mixed reacting material, so as to prepare a pretreated raw material; (2) proportioning: weighing and mixing 100 parts by weight of pretreated raw material, 10-20 parts by weight of silicon-aluminum material and 0.01-1 part by weight of grinding aid, and stirring for 10-15 minutes, so as to prepare a proportioned material; (3) putting the prepared proportioned material in a mill, carrying out fine milling, and sieving, thereby preparing the high-activity composite phosphorus slag powder. The high-activity composite phosphorus slag powder prepared by the method has the advantages of short initial setting time, high early strength, high activity and the like.
Description
Technical field
the present invention relates to a kind of preparation method of high reactivity compound phosphorus slag powder, belong to inorganic coagulation material manufacture technology field.
Background technology
phosphorus slag is a kind of solid industrial waste discharged in phosphorus production process.It is melts cooling body based on Calucium Silicate powder and vitreum.Under the effect of alkali-activator, the calcareous vitreum of silicic acid is by decomposition and generate the hydrated products such as hydrated calcium silicate.Therefore, phosphorus slag can be prepared by modes such as grinding and interpolation exciting agents the phosphorus slag powder used as inorganic coagulation material.But, adopt phosphorus slag powder obtained by prior art in actual application, but there is the shortcomings such as presetting period long, early strength is low, poor activity.By analysis, these shortcomings are due to P in phosphorus slag
2
o
5
mainly formed with two kinds and exist, namely a part is solid-solution in vitreum, and another part forms the Network former of vitreous structure.The former transfers to liquid phase in cement hydration process, and forms indissoluble precipitation at cement particle surface, constrains hydrated cementitious process; And the latter is as Network former, due to P
5+
field force compare Si
4+
field force strong, first the non-bridged bond of oxygen will be satisfied with P
5+
coordination, thus vitreous structure is strengthened.P in phosphorus slag
2
o
5
content is higher, and in its vitreum, the formation of anion complex and the polymerization degree increase, and network structure is more firm, hydraulically active decline.Visible, adopt of the prior art by phosphorus slag by grinding and the method for adding exciting agent etc., only by properties-correcting agent or precipitation agent with phosphorus slag by combined grinding, the P that part is dissociated can only be neutralized
2
o
5
.So the phosphorus slag powder adopting existing mode to make in use occurs that presetting period long, the shortcoming such as early strength is low, poor activity is inevitable phenomenon.Therefore, the mode of existing making phosphorus slag powder or not ideal enough, can not meet the needs of use.
Summary of the invention
the object of the invention is to, provide the preparation method of the high reactivity compound phosphorus slag powder that a kind of presetting period is short, early strength is high, activity is good, to overcome the deficiencies in the prior art.
technical scheme of the present invention is achieved in that
the preparation method of a kind of high reactivity compound phosphorus slag powder of the present invention is, it is raw material that the method comprises employing granulation phosphorus slag, and prepares high reactivity compound phosphorus slag powder in the steps below:
(1) limestone vegetation pre-treatment: get granulation phosphorus slag 80 ~ 99 parts, 1 ~ 20 part, calcium oxide and 30 ~ 60 parts, water by weight, first will be granulated phosphorus slag and the calcium oxide of 20% ~ 40% amount and the water hybrid reaction of 10% ~ 30% amount after 1 ~ 2 day, again reacted raw material is all put into grinding machine corase grind 3 ~ 5 minutes, then the raw material that remaining calcium oxide and water and corase grind are crossed is mixed together reaction after 1 ~ 2 day hybrid reaction material, after being dried at the temperature of 300 ~ 350 DEG C by hybrid reaction material, pretreating raw material can be obtained;
(2) prepare burden: get pretreating raw material 100 parts by weight and must prepare burden after 10 ~ 15 minutes with silica-aluminum materials 10 ~ 20 parts and grinding aid 0.01 ~ 1 part of mix and blend;
(3) fine grinding screening: obtained batching is put into grinding machine fine grinding and namely obtains high reactivity compound phosphorus slag powder after screening.
above-mentioned granulation phosphorus slag refers to the solid particulate phosphorus slag discharged by the Yellow phosphorus furnace of phosphorus production factory.
above-mentioned calcium oxide refers to the calcium oxide calcined by one or both calcium salts in Wingdale, carbide slag.
above-mentioned silica-aluminum materials is the flyash in industrial residue or the one in red mud, or silica-aluminum materials is the mixture of flyash and red mud.
when above-mentioned silica-aluminum materials is the mixture of flyash and red mud, the weight of flyash and red mud is any proportioning.
above-mentioned grinding aid is the mixture that is a kind of or wherein two kinds of raw materials in trolamine, polymerized polyalcohol, polyalcohol amine, tri-isopropanolamine, ethylene glycol, propylene glycol.
when above-mentioned grinding aid is the mixture of trolamine, polymerized polyalcohol, polyalcohol amine, tri-isopropanolamine, ethylene glycol, propylene glycol wherein two kinds of raw materials, get two kinds of raw materials weight be any proportioning.
above-mentioned carry out fine grinding screening time, the powdery fineness of obtained high reactivity compound phosphorus slag powder is 380 ~ 420 orders.
owing to have employed technique scheme; present invention employs pre-treatment and grinding technology, prepare high reactivity compound phosphorus slag powder to be granulated phosphorus slag for main raw material, it is fast that its performance has hydration and hardening; early strength advantages of higher, alternative cement cementitious material is in the use of building material field.Not only overcome existing production technology to prepare compound phosphorus slag powder to there is time of coagulation long, the shortcoming that intensity is low, and have larger improvement to the performance of phosphorus slag powder hydration and hardening.Adopt the present invention, can disintegrate to phosphorus slag vitreum, discharge P completely
2
o
5
, and the present invention adopts as properties-correcting agent and precipitation agent by adding calcium oxide, silica-aluminum materials, grinding aid etc., effectively eliminates P
2
o
5
, fundamentally eliminate P in phosphorus slag powder
2
o
5
to the negative impact of its hydration and hardening performance, thus obtain high reactivity compound phosphorus slag.Therefore, compared with prior art, the high reactivity compound phosphorus slag powder obtained by the present invention has that the presetting period is short, early strength is high, active advantages of higher in the present invention.This solid waste phosphorus slag to prepare high activity compound phosphorus slag powder for Yellow Phosphorous Plant discharge opens new approach.
Embodiment
below in conjunction with embodiment, the present invention is described in further detail, but not as any limitation of the invention.
embodiments of the invention 1:
(1) limestone vegetation pre-treatment: take 85kg respectively and be granulated phosphorus slag, 15kg calcium oxide and 40kg water; First 85kg is granulated phosphorus slag and 4.5kg calcium oxide and 12kg water hybrid reaction 1 day, enters after grinding machine roughly grinds 3 minutes, then add remaining 10.5kg calcium oxide and 28kg water hybrid reaction after 1 day, dry at 300 DEG C of temperature, i.e. obtained pretreating raw material;
(2) prepare burden: namely 100kg pretreating raw material and 10kg silica-aluminum materials, 0.01kg grinding aid mix and blend are obtained and prepare burden for 10 minutes;
(3) fine grinding screening: will prepare burden into grinding machine fine grinding, is sieving through 380 orders i.e. obtained high reactivity compound phosphorus slag powder finished product.
embodiments of the invention 2:
(1) limestone vegetation pre-treatment: take 90kg respectively and be granulated phosphorus slag, 10kg calcium oxide and 40kg water, first 90kg is granulated phosphorus slag and 3kg calcium oxide and 12kg water hybrid reaction 1 day, enter after grinding machine roughly grinds 5 minutes, add remaining 7kg calcium oxide and 38kg water hybrid reaction again after 1 day, dry obtained pretreating raw materials in 300 DEG C;
(2) prepare burden: namely 100kg pretreating raw material and 15kg silica-aluminum materials, 0.1kg grinding aid mix and blend obtain batching in 10 minutes;
(3) fine grinding screening: will prepare burden into grinding machine fine grinding, sieve and namely obtains high reactivity compound phosphorus slag powder finished product after crossing 380 orders.
embodiments of the invention 3:
(1) limestone vegetation pre-treatment: take 85kg respectively and be granulated phosphorus slag, 15kg calcium oxide and 60kg water.First 85kg is granulated phosphorus slag and 4.5kg calcium oxide and 18kg water hybrid reaction 2 days, enters after grinding machine roughly grinds 5 minutes, then add remaining 10.5kg calcium oxide and 42kg water hybrid reaction after 2 days, dry obtained pretreating raw materials in 300 DEG C;
(2) prepare burden: namely 100kg pretreating raw material and 15kg silica-aluminum materials, 0.2kg grinding aid mix and blend obtain batching in 15 minutes;
(3) fine grinding screening: will prepare burden into grinding machine fine grinding, is sieving through 400 orders i.e. obtained high reactivity compound phosphorus slag powder finished product.
embodiments of the invention 4:
(1) limestone vegetation pre-treatment: take 90kg respectively and be granulated phosphorus slag, 10kg calcium oxide and 50kg water.First 90kg is granulated phosphorus slag and 3kg calcium oxide and 15kg water hybrid reaction 2 days, enters after grinding machine roughly grinds 3 minutes, then add remaining 7kg calcium oxide and 35kg water hybrid reaction after 1 day, dry obtained pretreating raw materials in 300 DEG C;
(2) prepare burden: namely 100kg pretreating raw material and 10kg silica-aluminum materials, 0.5kg grinding aid mix and blend are obtained after 10 minutes and prepare burden;
(3) fine grinding screening: will prepare burden into grinding machine fine grinding, namely obtains high reactivity compound phosphorus slag powder finished product after being sieving through 400 orders.
the solid particulate phosphorus slag that granulation phosphorus slag used in above-described embodiment can directly adopt the Yellow phosphorus furnace of existing phosphorus production factory to discharge; Its calcium oxide is the calcium oxide of one or both calcium salts calcining in Wingdale of the prior art, carbide slag; Silica-aluminum materials used adopts the mixture of a kind of or flyash in the flyash in existing industrial residue or red mud and red mud, when silica-aluminum materials is the mixture of flyash and red mud, the weight of flyash and red mud is any proportioning, or flyash: red mud=1 ~ 99:99 ~ 1; Its grinding aid directly can adopt the mixture that is a kind of or wherein two kinds of raw materials in the raw materials such as trolamine of the prior art, polymerized polyalcohol, polyalcohol amine, tri-isopropanolamine, ethylene glycol, propylene glycol, when being the mixture of trolamine, polymerized polyalcohol, polyalcohol amine, tri-isopropanolamine, ethylene glycol, propylene glycol wherein two kinds of raw materials when adopting grinding aid, the weight that two kinds of raw materials are got by institute conveniently can carry out any proportioning according to use.
Claims (8)
1. a preparation method for high reactivity compound phosphorus slag powder, comprises and adopts granulation phosphorus slag to be raw material, it is characterized in that: prepare high reactivity compound phosphorus slag powder in the steps below:
(1) limestone vegetation pre-treatment: get granulation phosphorus slag 80 ~ 99 parts, 1 ~ 20 part, calcium oxide and 30 ~ 60 parts, water by weight, first will be granulated phosphorus slag and the calcium oxide of 20% ~ 40% amount and the water hybrid reaction of 10% ~ 30% amount after 1 ~ 2 day, again reacted raw material is all put into grinding machine corase grind 3 ~ 5 minutes, then the raw material that remaining calcium oxide and water and corase grind are crossed is mixed together reaction after 1 ~ 2 day hybrid reaction material, after being dried at the temperature of 300 ~ 350 DEG C by hybrid reaction material, pretreating raw material can be obtained;
(2) prepare burden: get pretreating raw material 100 parts by weight and must prepare burden after 10 ~ 15 minutes with silica-aluminum materials 10 ~ 20 parts and grinding aid 0.01 ~ 1 part of mix and blend;
(3) fine grinding screening: obtained batching is put into grinding machine fine grinding and namely obtains high reactivity compound phosphorus slag powder after screening.
2. the preparation method of high reactivity compound phosphorus slag powder according to claim 1, is characterized in that: described granulation phosphorus slag refers to the solid particulate phosphorus slag discharged by the Yellow phosphorus furnace of phosphorus production factory.
3. the preparation method of high reactivity compound phosphorus slag powder according to claim 1, is characterized in that: described calcium oxide refers to the calcium oxide calcined by one or both calcium salts in Wingdale, carbide slag.
4. the preparation method of high reactivity compound phosphorus slag powder according to claim 1, is characterized in that: described silica-aluminum materials is the flyash in industrial residue or the one in red mud, or silica-aluminum materials is the mixture of flyash and red mud.
5. the preparation method of high reactivity compound phosphorus slag powder according to claim 4, is characterized in that: when described silica-aluminum materials is the mixture of flyash and red mud, and the weight of flyash and red mud is any proportioning.
6. the preparation method of high reactivity compound phosphorus slag powder according to claim 1, is characterized in that: described grinding aid is the mixture that is a kind of or wherein two kinds of raw materials in trolamine, polymerized polyalcohol, polyalcohol amine, tri-isopropanolamine, ethylene glycol, propylene glycol.
7. the preparation method of high reactivity compound phosphorus slag powder according to claim 6, it is characterized in that: when described grinding aid is the mixture of trolamine, polymerized polyalcohol, polyalcohol amine, tri-isopropanolamine, ethylene glycol, propylene glycol wherein two kinds of raw materials, get two kinds of raw materials weight be any proportioning.
8. the preparation method of high reactivity compound phosphorus slag powder according to claim 1, is characterized in that: when carrying out fine grinding screening, the powdery fineness of obtained high reactivity compound phosphorus slag powder is 380 ~ 420 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108287.4A CN104724955A (en) | 2014-11-25 | 2015-03-12 | Method for preparing high-activity composite phosphorus slag powder |
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| CN201410684208 | 2014-11-25 | ||
| CN201410684208X | 2014-11-25 | ||
| CN201510108287.4A CN104724955A (en) | 2014-11-25 | 2015-03-12 | Method for preparing high-activity composite phosphorus slag powder |
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| CN104724955A true CN104724955A (en) | 2015-06-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606676A (en) * | 2019-10-08 | 2019-12-24 | 中建西部建设贵州有限公司 | Early-strength high-activity phosphorus slag auxiliary cementing material and preparation method thereof |
| CN115073025A (en) * | 2022-07-06 | 2022-09-20 | 中国水利水电第七工程局有限公司 | Low-slow-setting and high-initial-stage active phosphorus slag powder and preparation method thereof |
| CN117247251A (en) * | 2023-11-17 | 2023-12-19 | 四川省建筑科学研究院有限公司 | Grinding aid special for phosphorus slag based admixture and preparation method thereof |
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| CN1457937A (en) * | 2002-05-16 | 2003-11-26 | 尹小林 | Phosphorous slag activation modifier |
| CN1990413A (en) * | 2005-12-27 | 2007-07-04 | 尹小林 | Synthesis-reactivation technique for preparing inorganic coagulation material |
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2015
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Patent Citations (4)
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| CN1457937A (en) * | 2002-05-16 | 2003-11-26 | 尹小林 | Phosphorous slag activation modifier |
| CN1990413A (en) * | 2005-12-27 | 2007-07-04 | 尹小林 | Synthesis-reactivation technique for preparing inorganic coagulation material |
| CN103553402A (en) * | 2013-10-29 | 2014-02-05 | 同济大学 | Active compound activator of phosphorous slag powder and using method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606676A (en) * | 2019-10-08 | 2019-12-24 | 中建西部建设贵州有限公司 | Early-strength high-activity phosphorus slag auxiliary cementing material and preparation method thereof |
| CN115073025A (en) * | 2022-07-06 | 2022-09-20 | 中国水利水电第七工程局有限公司 | Low-slow-setting and high-initial-stage active phosphorus slag powder and preparation method thereof |
| CN117247251A (en) * | 2023-11-17 | 2023-12-19 | 四川省建筑科学研究院有限公司 | Grinding aid special for phosphorus slag based admixture and preparation method thereof |
| CN117247251B (en) * | 2023-11-17 | 2024-03-29 | 四川省建筑科学研究院有限公司 | Grinding aid special for phosphorus slag based admixture and preparation method thereof |
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Application publication date: 20150624 |
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